I cannot imagine the will it takes to go through this. All due to a sepsis/necrotizing fasciitis issue started from a strep infection which ended up taking all his limbs.
Very rarely are cases related to each other, and therefore have some common source of infection. More often than not, the cases are completely random and the patients could have done nothing to prevent it. Some may find that worrisome, for example, patients that get infections from such minor injuries such as a cut from gardening or falling on pavement. But other than keeping wounds clean, there isn't much you can do, so it shouldn't be something people should worry about.
He was a constable who happened to be scratched in the mouth by a thorn bush and contacted strep.
If everything's a superbug and nothing works we're right back to the era when a paper cut could be fatal.